Select an incorrect statement about sexual reproduction in bryophytes

Options

A. the sex organs in bryophytes are multicellular
B. archegonium in flask-shaped and produces a single egg
C. They produce biflagellate antherozoids
D. They produce uniflagellate antherozoids

Answer

To solve the question of selecting an incorrect statement about sexual reproduction in bryophytes, we will analyze each of the provided statements step by step.

### Step-by-Step Solution:

1. **Understanding Bryophytes**:
- Bryophytes are non-vascular plants, often referred to as the amphibians of the plant kingdom because they require water for their reproductive processes.

2. **Identifying the Sexual Reproductive Organs**:
- Bryophytes have two main types of sex organs:
- **Male Sex Organ**: Antheridium, which produces male gametes called anthrazoids.
- **Female Sex Organ**: Archegonium, which produces the female gamete (egg).

3. **Examining the Male Gametes**:
- The male gametes (anthrazoids) produced in the antheridium are biflagellate, meaning they have two flagella. This is crucial for their motility in water.

4. **Analyzing the Statements**:
- Now, we will consider the statements provided:
- **Statement 1**: Bryophytes depend on water for sexual reproduction. (Correct)
- **Statement 2**: The male sex organ is called antheridium. (Correct)
- **Statement 3**: The female sex organ is called archegonium. (Correct)
- **Statement 4**: Anthrazoids are uniflagellate. (Incorrect)

5. **Conclusion**:
- The fourth statement is incorrect because anthrazoids are biflagellate, not uniflagellate.

### Final Answer:
The incorrect statement about sexual reproduction in bryophytes is: "Anthrazoids are uniflagellate."

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